CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL.

1) Disconnect the connectors from the ECM.

2) Measure the resistance of harness between ECM and electronic throttle control connector.

Connector & terminal

(B134) No. 19 — (E57) No. 5:

(B134) No. 18 — (E57) No. 4:

(B134) No. 29 — (E57) No. 3:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Open circuit in harness between ECM and electronic throttle control connector

Poor contact of coupling connector